'Kate Plus 8' Sneak Peek! Lots of Birthday Drama as Sextuplets Turn 11

"Extra" has a sneak peek of the upcoming episode of TLC's "Kate Plus 8," in which Kate Gosselin throws a birthday party for her sextuplets, who are turning 11.

The birthday planning was going well, but then things hit a snag when the girls' hotel sleeping situation got seriously crowded and out of control. Take a look!

Watch the full "Kate Plus 8" special on Tuesday, June 30 at 10 PM on TLC.